Alright, let's work through 6488 times 3546 step by step
6488 × 3546 = 3546 × (6488)
+ 3546 × 8 that equals 28368
+ 3546 × 80 producing 283680
+ 3546 × 400 which equals 1418400
+ 3546 × 6000 yielding 21276000

= 23006448
